No, that would mean any defense would be virtually useless. This is modulated god-modding. If Val can pass through any shield, then Khalida should be able to release Zenevas right now. Not even C0rank or eve S rank should be able to do that. The only compromise is that he can pass through the shield of any one of LOWER level. Also Khalida has killed 3 S rank monsters. Where does she level up?

This is still unfair. I will not recognize this skill unless its rules are extremely precise. What if someone makes a Shield against Shield Defiance? Maybe its better if someone makes all the apps and people have to meet their prerequisites to gain them instead of everyone having an arms race and making steadily extremely unfair apps.

hmm...what if Val is only able to pass through any kind of shield/barrier ONCE per Topic? I mean, he can pass through any shield or barrier but only once per kind, and can't be repeated with no recharge (since there are many kinds of shields). would this be good?